公开(公告)号：US20230226567A1

公开(公告)日：2023-07-20

申请号：US17799600

申请日：2020-10-20

Applicant: MAJESTY PACKAGING SYSTEMS LIMITED

Inventor： Peihui LIANG ,  Maoyong ZHU ,  Yonglei ZHANG ,  Jun LI

IPC: B05B11/10 ,  B05B11/00

CPC classification number: B05B11/1057 ,  B05B11/1011 ,  B05B11/007 ,  B05B11/1047 ,  B05B11/0032 ,  B05B11/1077

Abstract: A full-plastic trigger spray pump, comprising a pump body (1). The lower part of the pump body (1) is connected to a locking cover (8); a liquid spray channel (11) is provided in the pump body (1); a nozzle (2) is provided at an outlet of the liquid spray channel (11); a liquid outlet channel (12) and a liquid inlet channel (13) which are vertically isolated from each other are provided in the pump body (1); the liquid outlet channel (12) is communicated with the liquid spray channel (11); a liquid guide chamber (14) is provided on a side of the liquid outlet channel (12) and the liquid inlet channel (13); the upper part of the liquid guide chamber (14) is always in communication with the liquid outlet channel (12) by means of a normally open port (15); a pumping piston (3) is provided in the liquid guide chamber (14); a trigger (4) capable of driving the pumping piston (3) to do piston movement in a left-right direction in the liquid guide chamber (14) is hinged onto the pump body (1); an elastic arm (5) capable of pressing against the pump body (1) and driving the trigger (4) to return the pumping piston (3) back is provided on the trigger (4); a lateral one-way valve that can be opened during the return movement of the pumping piston (3) so as to enable the liquid guide chamber (14) to be communicated with the liquid inlet channel (13) is provided between the liquid guide chamber (14) and the liquid inlet channel (13). The full-plastic trigger spray pump has simple structure and high liquid inflow efficiency, and can make full use of the solution pumped into the liquid guide chamber via a pump.